Quick Pitch Universal Center Ring - Mark E Industries
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The Quick Pitch Center Ring is designed to accommodate 2" and 3" shower drains, square drain risers, and most other specialty shower drains and works in conjunction with the Mark E Industries "Goof Proof" Pre-Pitched Shower Components. For more information follow the link below.
https://www.installertools.com/products/quick-pitch-universal-center-ring